11618440 has 32 divisors (see below), whose sum is σ = 26516160. Its totient is φ = 4580800.

The previous prime is 11618437. The next prime is 11618441. The reversal of 11618440 is 4481611.

It is not an unprimeable number, because it can be changed into a prime (11618441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795 + ... + 4885.

It is an arithmetic number, because the mean of its divisors is an integer number (828630).

Almost surely, 2^11618440 is an apocalyptic number.

11618440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11618440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13258080).

11618440 is an abundant number, since it is smaller than the sum of its proper divisors (14897720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11618440 is a wasteful number, since it uses less digits than its factorization.

11618440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173 (or 4169 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 11618440 is about 3408.5832834185. The cubic root of 11618440 is about 226.4901258960.

The spelling of 11618440 in words is "eleven million, six hundred eighteen thousand, four hundred forty".